Created a test.suite.clean.checkinit ant target which:

runs ant all.clean
  builds with -Xcheckinit
  runs the test suite with -Xcheckinit

Review by cunei? If the nightly is trying to do the above
sequence with command line options, I suggest it be changed
to run this target or a similar one so the logic is not
separated from the buildfile.

git-svn-id: http://lampsvn.epfl.ch/svn-repos/scala/scala/trunk@21374 5e8d7ff9-d8ef-0310-90f0-a4852d11357a

build.xml

@@ -1504,6 +1504,14 @@ BOOTRAPING TEST AND TEST SUITE
     </same>
   </target>
 
+  <target name="test.suite.clean.checkinit">
+	<antcall target="all.clean" />
+	<antcall target="test.suite" inheritAll="false">
+      <param name="scalac.args.optimise" value="-Xcheckinit" />
+      <param name="partest.scalacopts" value="-Xcheckinit" />
+    </antcall>
+  </target>
+
   <target name="test.suite" depends="pack.done">
 	<partest classpathref="pack.classpath">
 	  <env key="PATH" path="${build-pack.dir}/bin:${env.PATH}" />